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Tue, 13 May 2025 08:48:04 -0700 (PDT) From: Jerome Brunet To: Vignesh Raman Cc: Neil Armstrong , linux-amlogic , khilman@baylibre.com, martin.blumenstingl@googlemail.com, sboyd@kernel.org, daniels , Daniel Stone , lumag@kernel.org, robdclark , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: amlogic: Synchronous Abort with v6.15-rc6 In-Reply-To: <714a719a-9e56-4158-a8ce-118b7ddb97b3@collabora.com> (Vignesh Raman's message of "Tue, 13 May 2025 19:56:29 +0530") References: <714a719a-9e56-4158-a8ce-118b7ddb97b3@collabora.com> User-Agent: mu4e 1.12.9; emacs 30.1 Date: Tue, 13 May 2025 17:48:03 +0200 Message-ID: <1j5xi4zf4c.fsf@starbuckisacylon.baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On Tue 13 May 2025 at 19:56, Vignesh Raman wr= ote: > Hi Neil, > > On 13/05/25 15:25, neil.armstrong@linaro.org wrote: >> Hi, >> On 13/05/2025 11:41, Vignesh Raman wrote: >>> Hi, >>> >>> The Amlogic Meson G12B (A311D) SoC board (meson-g12b-a311d-khadas- vim3) >>> fails to boot with the following logs, >>> >>> https://gitlab.freedesktop.org/vigneshraman/linux/-/jobs/76210200 >>> >>> 02:58:27.819: Starting kernel ... >>> 02:58:27.819: "Synchronous Abort" handler, esr 0x96000010, far 0x51000d8 >>> 02:58:27.819: "Synchronous Abort" handler, esr 0x96000010, far 0x51000c8 >>> 02:58:27.819: elr: 0000000001002a48 lr : 0000000001002c88 (reloc) >>> 02:58:27.819: elr: 00000000f2f26a48 lr : 00000000f2f26c88 >>> 02:58:27.819: x0 : 00000000050fffc0 x1 : 0000000001004383 >>> 02:58:27.819: x2 : 00000000f2f6a358 x3 : 000000000000003f >>> 02:58:27.819: x4 : 00000000f4fefffc x5 : 0000000000000010 >>> 02:58:27.819: x6 : 00000000f4e5b000 x7 : 00000000050fffa0 >>> 02:58:27.819: x8 : 0000000000000008 x9 : 0000000000000001 >>> 02:58:27.820: x10: 0000000000000010 x11: 0000000000000004 >>> 02:58:27.820: x12: 00000000f4fefc00 x13: 0000000000000000 >>> 02:58:27.820: x14: 00000000f4fefc00 x15: 0000000000000000 >>> 02:58:27.820: x16: 00000000f2f6d0e0 x17: 0000000000c0c0c0 >>> 02:58:27.820: x18: 00000000f0f21d90 x19: 00000000050fffc0 >>> 02:58:27.820: x20: 0000000000000000 x21: 000000007ffe9000 >>> 02:58:27.820: x22: 0000000000001710 x23: 00000000f0f0e8c0 >>> 02:58:27.820: x24: 0000000000000000 x25: 0000000000000000 >>> 02:58:27.820: x26: 0000000000000000 x27: 0000000000000000 >>> 02:58:27.820: x28: 00000000f0f4f790 x29: 00000000050fff60 >>> 02:58:27.820: Code: a9025bf5 f9001bf7 f9400641 36000141 (f9408663) >>> 02:58:27.820: Resetting CPU ... >>> >> Could you boot with earlycon enabled to at least have a clue of what's >> happening ? > > There is a synchronous abort right after 'Starting kernel...'. Maybe this > prevents any early console logs from appearing. > > https://gitlab.freedesktop.org/vigneshraman/linux/-/jobs/76243455 I've just tried to boot v6.15-rc1 on a vim3 (A311D). Booted fine. > > 13:54:02.013: =3D> setenv bootargs 'console=3DttyAML0,115200n8 root=3D/de= v/nfs rw > nfsroot=3D192.168.201.1:/var/lib/lava/dispatcher/tmp/18641665/extract-nfs= rootfs-h2fjsmdc,tcp,hard,v3 > init=3D/init rootwait usbcore.quirks=3D0bda:8153:k earlycon=3Dmeson,0xff8= 03000 > keep_bootcon ip=3Ddhcp' > 13:54:02.014: $ booti 0x1080000 - 0x1000000 > 13:54:02.014: =3D> booti 0x1080000 - 0x1000000 > 13:54:02.014: Moving Image from 0x1080000 to 0x1200000, end=3D5160000 > 13:54:02.014: ## Flattened Device Tree blob at 01000000 > 13:54:02.014: Booting using the fdt blob at 0x1000000 > 13:54:02.014: Working FDT set to 1000000 > 13:54:02.014: ERROR: reserving fdt memory region failed (addr=3D5000000 > size=3D300000 flags=3D4) > 13:54:02.014: Loading Device Tree to 000000007ffe9000, end > 000000007ffff57c ... OK > 13:54:02.014: Working FDT set to 7ffe9000 > 13:54:02.014: Starting kernel ... > 13:54:02.014: "Synchronous Abort" handler, esr 0x96000010, far 0x51000d8 > 13:54:02.014: "Synchronous Abort" handler, esr 0x96000010, far 0x51000c8 > 13:54:02.014: elr: 0000000001002a48 lr : 0000000001002c88 (reloc) > 13:54:02.014: elr: 00000000f2f26a48 lr : 00000000f2f26c88 > 13:54:02.014: x0 : 00000000050fffc0 x1 : 0000000001004383 > 13:54:02.014: x2 : 00000000f2f6a358 x3 : 000000000000003f > 13:54:02.014: x4 : 00000000f4fefffc x5 : 0000000000000010 > 13:54:02.014: x6 : 00000000f4e5b000 x7 : 00000000050fffa0 > 13:54:02.014: x8 : 0000000000000008 x9 : 0000000000000001 > 13:54:02.014: x10: 0000000000000010 x11: 0000000000000004 > 13:54:02.014: x12: 00000000f4fefc00 x13: 0000000000000000 > 13:54:02.014: x14: 00000000f4fefc00 x15: 0000000000000000 > 13:54:02.014: x16: 00000000f2f6d0e0 x17: 0000000000c0c0c0 > 13:54:02.014: x18: 00000000f0f21d90 x19: 00000000050fffc0 > 13:54:02.014: x20: 0000000000000000 x21: 000000007ffe9000 > 13:54:02.014: x22: 0000000000001710 x23: 00000000f0f0e8c0 > 13:54:02.014: x24: 0000000000000000 x25: 0000000000000000 > 13:54:02.014: x26: 0000000000000000 x27: 0000000000000000 > 13:54:02.014: x28: 00000000f0f566a0 x29: 00000000050fff60 > 13:54:02.014: Code: a9025bf5 f9001bf7 f9400641 36000141 (f9408663) > 13:54:02.014: Resetting CPU ... > > Successful logs with v6.14-rc7, > https://gitlab.freedesktop.org/vigneshraman/linux/-/jobs/76248143 > >> BPI-M2S (A311D) is booting fine on v6.15-rc, see https://gitlab.com/ >> amlogic-foss/abcd-linux-test/-/jobs/10004997032 >> But perhaps something specific to the VIM3 is breaking, do you change the >> kernel config for the DRM ? > > Yes, we change the config. Please see the config used to build the kernel, > https://gitlab.freedesktop.org/vigneshraman/linux/-/jobs/76243439/artifac= ts/file/artifacts/testing:arm64_config > > Regards, > Vignesh > >> Neil >>=20 >>> The board boots successfully in v6.14-rc7, but the issue appears >>> starting from v6.15-rc1. These tests were run in drm-ci. >>> >>> On bisecting the kernel, the first bad commit identified by git biscet >>> is, >>> >>> 59c35416f4246aee66b5f5523fdc950b83325d82 is the first bad commit >>> commit 59c35416f4246aee66b5f5523fdc950b83325d82 >>> Merge: 472863ab2aca e988adcb5dee >>> Author: Linus Torvalds >>> Date:=C2=A0=C2=A0 Sat Mar 29 17:23:34 2025 -0700 >>> >>> =C2=A0=C2=A0=C2=A0=C2=A0 Merge tag 'clk-for-linus' of git://git.kernel.= org/pub/scm/linux/ >>> kernel/git/clk/linux It is odd the first bad commit is a merge :/ >>> >>> Please could you look into this issue. Thank you. Assuming it is not something in CCF itself, 2 commits for this platform in the PR mentionned above: 0079e77c08de clk: amlogic: g12a: fix mmc A peripheral clock 8995f8f108c3 clk: amlogic: g12b: fix cluster A parent data Checking the clock tree, those appears to work as intended, including the VIM3 platform. Maybe try reverting one or the other, see if that changes anything. >>> >>> Regards, >>> Vignesh >>=20 --=20 Jerome